| P | R | S | T |
| PTCPKeepAlive |
| RCVALL_OFF | RCVALL_ON | RCVALL_SOCKETLEVELONLY |
| SIO_ABSORB_RTRALERT | SIO_INDEX_MCASTIF | SIO_RCVALL_IGMPMCAST |
| SIO_INDEX_ADD_MCAST | SIO_KEEPALIVE_VALS | SIO_RCVALL_MCAST |
| SIO_INDEX_BIND | SIO_LIMIT_BROADCASTS | SIO_UCAST_IF |
| SIO_INDEX_DEL_MCAST | SIO_RCVALL |
| tcp_keepalive | TTCPKeepAlive |